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Home >> Infiniti >> 2015 >> QX60 Base, FWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 104 (Door & Lock (Introduction, Wiring Diagrams And Basic Inspection) (Except Hybrid)) >> System Description >> Component Parts >> Automatic Back Door System >> Component Description

Component Description

WARNING: This page is about a different car, the 2016 Infiniti QX60. However, it is still accessible from the selected car via links, so may be relevant.
Item Function
Automatic back door control module Controls the automatic back door system.
BCM Transmits and receives signals to the automatic back door control module.
Combination meter Transmits vehicle speed signal to CAN communication line.
Automatic back door warning chime Warns the user of the automatic back door condition and inappropriate operations with the chime sounds.
Touch sensor LH/RH During back door close operation, the touch sensor detects any trapped foreign material.
Back door opener switch Detects if back door opener switch is press/release.
Back door request switch Detects if back door request switch is press/release.
Automatic back door switch Detects if automatic back door switch is press/release.
Automatic back door main switch Detects if automatic back door main switch is press/release.
Automatic back door close switch Detects if automatic back door close switch is press/release.
Back door lock assembly Back door closure motor, half latch switch, open switch, close switch and back door switch are installed:
  • Closure motor: Inputs open/close signal from automatic back door control module and activates the back door auto closure operation.
  • Half latch switch: Starts the closure motor close operation.
  • Open switch: Stops the closure motor open operation.
  • Close switch: Stops the closure motor close operation.
  • Back door switch: Inputs back door open/ close condition to BCM.
Spindle unit Encoder and spindle motor are installed:
  • Encoder: Automatic back door control module receives the pulse signals from encoders A and B that occurred due to synchronization with the back door operation. The automatic back door control module calculates the back door position, operation direction, and operation speed according to the received pulse signals.
  • Spindle motor: Inputs open/close signal from automatic back door control module and activates the automatic back door open/close operation.
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